KARAKIRI is a new logic puzzle that at my advise is the successor of SUDOKU. It is very difficult more than SUDOKU !!!!! Its name is "KARAKIRI" because solve it is a suicide it is a karakiri. It is described in the its official web site http://www.karakiri.it It is made of 4 or more concentric circumferences crossed by 4 or more diameters now the goal of the game is to insert the numbers from 1 to 8(like SUDOKU) in the every diameter and in the every circumference You can play this game at http://www.solitariconlecarte.it/karakiri.htm

I tried it but it does not have the same bang as I get with the original. I do like different shapes though when I do them. Sometimes though I get the feeling that I am doing the same puzzle but with different starting numbers. That is when I hang it up for a while.